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Montesano, WA - The Grays Harbor County Emergency Management Agency verifies road conditions prior to listing them as "reopened" so please be aware that this list may be updated/outdated at any time. Do NOT drive through water over a roadway. To view a complete list of roads closed in Grays Harbor County, please visit: http://www.co.grays-harbor.wa.us/info/DEM/RoadClosures.asp Landslide Warning Signs (from the USGS) - Springs, seeps, or saturated ground in areas that have not typically been wet before.
- New cracks or unusual bulges in the ground, street pavements or sidewalks.
- Soil moving away from foundations.
- Ancillary structures such as decks and patios tilting and/or moving relative to the main house.
- Tilting or cracking of concrete floors and foundations.
- Broken water lines and other underground utilities.
- Leaning telephone poles, trees, retaining walls or fences.
- Offset fence lines.
- Sunken or down-dropped road beds.
- Rapid increase in creek water levels, possibly accompanied by increased turbidity (soil content).
- Sudden decrease in creek water levels though rain is still falling or just recently stopped.
- Sticking doors and windows, and visible open spaces indicating jambs and frames out of plumb.
- A faint rumbling sound that increases in volume is noticeable as the landslide nears.
- Unusual sounds, such as trees cracking or boulders knocking together, might indicate moving debris.
Areas that are generally prone to landslide hazards - On existing old landslides.
- On or at the base of slopes.
- In or at the base of minor drainage hollows.
- At the base or top of an old fill slope.
- At the base or top of a steep cut slope.
- Developed hillsides where leach field septic systems are used.
Areas that are typically considered safe from landslides - On hard, non-jointed bedrock that has not moved in the past.
- On relatively flat-lying areas away from sudden changes in slope angle.
- At the top or along the nose of ridges, set back from the tops of slopes.
Landslide Warning Signs (from the USGS) · Springs, seeps, or saturated ground in areas that have not typically been wet before. · New cracks or unusual bulges in the ground, street pavements or sidewalks. · Soil moving away from foundations. · Ancillary structures such as decks and patios tilting and/or moving relative to the main house. · Tilting or cracking of concrete floors and foundations. · Broken water lines and other underground utilities. · Leaning telephone poles, trees, retaining walls or fences. · Offset fence lines. · Sunken or down-dropped road beds. · Rapid increase in creek water levels, possibly accompanied by increased turbidity (soil content). · Sudden decrease in creek water levels though rain is still falling or just recently stopped. · Sticking doors and windows, and visible open spaces indicating jambs and frames out of plumb. · A faint rumbling sound that increases in volume is noticeable as the landslide nears. · Unusual sounds, such as trees cracking or boulders knocking together, might indicate moving debris. Areas that are generally prone to landslide hazards · On existing old landslides. · On or at the base of slopes. · In or at the base of minor drainage hollows. · At the base or top of an old fill slope. · At the base or top of a steep cut slope. · Developed hillsides where leach field septic systems are used. Areas that are typically considered safe from landslides · On hard, non-jointed bedrock that has not moved in the past. · On relatively flat-lying areas away from sudden changes in slope angle. · At the top or along the nose of ridges, set back from the tops of slopes. |
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